firmware: init display when used in standalone (firmware0) mode

embed/firmware/main.c

@@ -21,12 +21,22 @@
 #include "sdcard.h"
 #include "touch.h"
 
+bool firmware_standalone(void)
+{
+    extern const uint32_t _flash_start;
+    return _flash_start == 0x0800000;
+}
+
 int main(void) {
 
     periph_init();
 
     pendsv_init();
 
+    if (firmware_standalone()) {
+        display_init();
+    }
+
     display_pwm_init();
     display_orientation(0);
     display_backlight(255);

embed/firmware/memory.ld

@@ -92,6 +92,9 @@ SECTIONS
     .ARM.attributes 0 : { *(.ARM.attributes) }
 }
 
+_flash_start = ORIGIN(FLASH);
+_flash_end = ORIGIN(FLASH) + LENGTH(FLASH);
+
 /* RAM extents for the garbage collector */
 _codelen = SIZEOF(.flash) + SIZEOF(.data);
 _ram_start = ORIGIN(RAM);

embed/firmware/memory0.ld

@@ -85,6 +85,9 @@ SECTIONS
     .ARM.attributes 0 : { *(.ARM.attributes) }
 }
 
+_flash_start = ORIGIN(FLASH);
+_flash_end = ORIGIN(FLASH) + LENGTH(FLASH);
+
 /* RAM extents for the garbage collector */
 _codelen = SIZEOF(.flash) + SIZEOF(.data);
 _ram_start = ORIGIN(RAM);